Nut-lock.



WU noes G. 0. dz J. H. RUFF.

NUT'LOOK. I APPLICATION FILED MAY 8, 1908.

/ Patented Mar. 23, 1909.

attuned;

UNITED STATES PATENT ornroaif OHARLEYIG. RUFF AND JOHN H. RUFF,

NUT-LOCK.

Specification of Letters Patent. Application filed May 8', 1908. Serial No. 431,589.

or LAKE tRtEK'; TExAs...- ;i-

Patented arches, 1909.

To all whom it may concern:

Be it known that we, CHARLIE C. RUFF and JoHN H. RUFF", citizens of the United States, residim at Lake Creek, in the county of Delta and i tate of Texas, have invented new and useful Improvements in Lockluts, of which the following is a s ecification.

This invention relates to ock nuts, primarily intended for use in securing nuts upon vehicle axles, but susceptible to other uses, and the object of the invention is to produce a device of this character which may be readily and easily applied to securely look a nut upon a bolt, and which may be readily removed when it is desired to disengage the nut from the bolt.

To these ends the invention consists in providing a bolt with a de ression or cut away portion upon its face, t 1e nut therefore having a reduced extension provided with exterior threads and having a longitudinal bore, a second nut for the extension and a sliding key for the bore, the key being provided with a cut away portion for the reception of the second nut and'having a head adapted for engagement with the depression provided in the face of the bolt.

In the accompanying drawings, Figure 1 is a longitudinal sectional view of the device, illustrating the same in plied position upon the axle of a vehicle. ig. 2 1s afront elevation of Fig. 1. Fig. 3 is a perspective view of the locking element or key.

In the accompanying drawings the improved lock nut is illustrated in connection with a vehicle axle, but it is to be understood that the device is not limited to this particular use, as it maybe applied with equal.

efliciency upon other devices.

In the drawings the. numeral 1 designates a vehicle axle, provided with a reduced threaded extremity This extremity 2 has its face provided with a depression or cut away portion 3, the purpose of which will herein-after lie described. Secured upon the threaded extension 2 of the axle 1 is a nut sliding key 7. This key 7 is provided with a depending finger 8, adapted to engage the depression 3 upon the threaded extremity of the axis 1, and the key is also provided with a de ression or cut away ortion 9, of a widt 1' ap roximately equaling that of the reduced t ireaded extremity 5 of the nut 4. A locking nut 10 is employed. This nut 10 is of a width equaling that of the threaded extremity 5, of the nut 4, and the cut away ortion 9 of the key 7, both of which the ocking nut is adapted to engage. In securing a nut upon a bolt with the present improvement, the nut 4 is first positioned upon the threaded extension 2, the reduced portion 9 of the key 7 engaged upon the lock nut 10, the body of the key ositioned in alinement with the bore 6 o the nut 4, the lock nut 10 rotated upon the threaded portion 5 of the nut 4, thus forcing the body of the key 7 within the bore and the fingers into engagement with the depression or cut away portion provided u on the face of the threaded extension 2 of t e axle. In order to provide for the ready Withdrawal of the key, a helical spring '11 is positioned between the key v7' and the face of the bore 6, thus materially aiding in the disengagement of the locking nut 10 from the threads 5 of the nut 4.

Having thus fully described the invention what is claimed as new is:

1. The combination with a threaded bolt having its face provided with a depression, a nut for the bolt, said nut being provided with a reduced threaded extension and having a longitudinal bore, a key for the bore having 'a longitudinal cut away portion to provide a shoulder and an angularly arranged finger, and a locking nut ada ted to engage the shoulder of the key and t e reduced threaded extremity of the nut to force the bod of the key into the bore of the nut and the ger of the key into the recess or depression provided upon the face of the bolt. 2. The combination with a threaded bolt having its face provided with a depression, a nut for the bolt, said nut being provided with a reduced threaded extension and having a longitudinal bore, a helical s ringwithin the bore, a key for the bore, sai key being provided with a longitudinal cut away portion to provide a shoulder and an angularly extending finger, ami a locking nut aaepted to In testimonyivhereof we affix our signaengage the shoulder of the key and to be rotures in presence of two witnesses.

tated upon the threaded extension of the nut. CHARLEY C. RUFF. to force the key into the bore of the nut JOHN H. RUFF.

i against the sprmg and the finger into en- Witnesses:

gagement with the depression'upon the face of DANIEL B. WESTERMAN,

the bolt. HENRY L. CoMBs. 

